This puzzle:

JimH notes: This tricky theme confused many solvers. Look closely at the circles in the grid. TUBE and FASTBALL are inside circles. GIFT is wrapped by them. SELF is contained by them. PLANETS are ringed by them. ORGANS are internal to them. UP is bubbled inside. The especially nice coincidence is that the Nine-banded ARMADILLO gets nine bands because Armadillo has nine letters.